Question

( 1.2 - 4y ) * 2 = 5y - 0.4 ( 5 - 15y ) - 1.3 решить)

Answer 1

( 1.2 - 4y ) * 2 = 5y - 0.4 ( 5 - 15y ) - 1.3

2.4-8у=5у-2+6у-1.3

2.4+2+1.3=5у+8у+6у

5.7=19у

у=5.7/19

у=0.3